If it really is as free for all as you describe, then the game is destined to fail. Average players aren't going to participate in a game world where griefing is rampant and without average players no game can survive. In a game where accountability is nil, 9 times out of 10 players will prefer to screw each other over than be symbiotic. These types of games usually experience a mass exodus very soon after release because of human nature.
In spite of that, it still sounds boring to me. I'm not a fan of open world DayZ style games.
Pretty much this.
I've played in several mmo's that had pretty much free for all pvp everywhere, and it almost never turns out pretty.
Normally, after getting harrassed constantly by the "pro" pvpers, a large part of the players drop their membership, and all thats left is the pvpers. Then, the company running the game loses money and shuts down. I"m a little curious how some of the newer games that have open pvp are doing, since I don't really bother playing them all that much.
On a different note, I'm a little skeptical about running a kick starter on an mmo. I would think that the cost of running the servers, and the bandwidth, would be way to prohibitive to be earning the money you needed from a kick starter.